Optical: systems and elements – Holographic system or element – For synthetically generating a hologram
Reexamination Certificate
2005-09-13
2005-09-13
Assaf, Fayez G. (Department: 2872)
Optical: systems and elements
Holographic system or element
For synthetically generating a hologram
C359S010000, C359S011000, C359S032000, C382S210000
Reexamination Certificate
active
06943924
ABSTRACT:
The present invention is related to a method for performing digital holographic imaging (DHI), said DHI being characterized by the fact that images of a sample are obtained by applying numerical means to reconstruct holograms of the sample. In the method of the invention, the sample is in a medium with controlled properties that influence the behaviour of the sample, and/or that influence the process of hologram formation. The information content of one hologram, or of a plurality of holograms, recorded with the sample in one medium, or in a plurality of medium, is used to reconstruct one image of the sample, or a plurality of images of the sample, that describe quantitatively one property of the sample, or a plurality of properties of the sample. The present invention is also related to an apparatus with which to perform said method.
REFERENCES:
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patent: 6262818 (2001-07-01), Depeursinge et al.
patent: 2004/0156098 (2004-08-01), Dubois et al.
patent: 1 043 632 (2000-10-01), None
Boyer et al, “Biomedical Three-Dimensional Holographic Microimaging at Visible, Ultraviolet and X-ray Wavelengths”, Nature Medicine, Nature Publishing, Co., US, vol. 2, No. 8, Aug. 1996, pp. 939-941.
Dubois et al, “Improved three-dimensional imaging with a digital holography microscope with a source of partial spatial coherence”, Applied Optics, Dec. 1, 1999, Opt. Soc. America, USA, vol. 38, No. 34, pp. 7085-7094.
Cuche Etienne
Depeursinge Christian
Magistretti Pierre
Marquet Pierre
Assaf Fayez G.
Ecole Polytechnique Federale de Lausanne (EPFL)
Nixon & Vanderhye P.C.
Universite de Lausanne /BRA
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